DL4728A SERIES
SURFACE MOUNT ZENER DIODES
VOLTAGE
3.3 to 75 Volts
1 Watts
POWER
FEATURES
• Low inductance
• Lead free in comply with EU RoHS 2011/65/EU directives
MECHANICAL DATA
• Case: Molded Glass MELF / DL-41
• Terminals: Solderable per MIL-STD-750, Method 2026
• Polarity: Color band denotes cathode end
• Approx. Weight: 0.16 grams
• Packing information
T/R - 5K per 13" paper Reel
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
Parameter
Power Dissipation at TA = 25OC
Operating Junction Temperature Range
Storage Temperature Range
Symbol
Value
Units
PTOT
1*
W
TJ
-65 to +200
O
TSTG
-65 to +200
O
C
C
*Valid provided that leads at a distance of 10mm from case are kept at ambient temperature.
Parameter
Thermal Resistance Junction to Ambient Air
Symbol
Min.
Typ.
Max.
Units
RJA
--
--
170*
o
VF
--
--
1.2
Forward Voltage at IF = 200mA
C/W
V
*Valid provided that leads at a distance of 10mm from case are kept at ambient temperature.
Notes :
STANDARD VOLTAGE TOLERANCE IS + 5% AND :
SUFFIX “A” FOR + 5%
SUFFIX “B” FOR + 2%
SUFFIX “C” FOR + 3%
May 9,2013-REV.04
PAGE . 1
DL4728A SERIES
Ma xi mum Ze ne r Vo lta g e
Part Number
V Z @ IZT
No m. V
Mi n. V
Z ZT @ IZT
Max. V
Ma xi mum Leakage
Current
Ma xi mum Ze ne r Imp e d a nc e
Z ZK @ IZK
IR @VR
mA
mA
A
V
1 Watt Zener Diodes (Glass Sealed Envelope)
DL4728A
3.3
3.14
3.47
10
76
400
1
100
1
DL4729A
3.6
3.42
3.78
10
69
400
1
100
1
DL4730A
3.9
3.71
4.1
9
64
400
1
50
1
DL4731A
4.3
4.09
4.52
9
58
400
1
10
1
DL4732A
4.7
4.47
4.94
8
53
500
1
10
1
DL4733A
5.1
4.85
5.36
7
49
550
1
10
1
DL4734A
5.6
5.32
5.88
5
45
600
1
10
2
DL4735A
6.2
5.89
6.51
2
41
700
1
10
3
DL4736A
6.8
6.46
7.14
3.5
37
700
1
10
4
DL4737A
7.5
7.13
7.88
4
34
700
0.5
10
5
DL4738A
8.2
7.79
8.61
4.5
31
700
0.5
10
6
DL4739A
9.1
8.65
9.56
5
28
700
0.5
10
7
DL4740A
10
9.5
10.5
7
25
700
0.25
10
7.6
DL4741A
11
10.45
11.55
8
23
700
0.25
5
8.4
DL4742A
12
11.4
12.6
9
21
700
0.25
5
9.1
DL4743A
13
12.35
13.65
10
19
700
0.25
5
9.9
DL4744A
15
14.25
15.75
14
17
700
0.25
5
11.4
DL4745A
16
15.2
16.8
16
15.5
700
0.25
5
12.2
DL4746A
18
17.1
18.9
20
14
750
0.25
5
13.7
DL4747A
20
19
21
22
12.5
750
0.25
5
15.2
DL4748A
22
20.9
23.1
23
11.5
750
0.25
5
16.7
DL4749A
24
22.8
25.2
25
10.5
750
0.25
5
18.2
DL4750A
27
25.65
28.35
35
9.5
750
0.25
5
20.6
DL4751A
30
28.5
31.5
40
8.5
1000
0.25
5
22.8
DL4752A
33
31.35
34.65
45
7.5
1000
0.25
5
25.1
DL4753A
36
34.2
37.8
50
7
1000
0.25
5
27.4
DL4754A
39
37.05
40.95
60
6.5
1000
0.25
5
29.7
DL4755A
43
40.85
45.15
70
6
1500
0.25
0.5
32.7
DL4756A
47
44.65
49.35
80
5.5
1500
0.25
0.5
35.8
DL4757A
51
48.45
53.55
95
5
1500
0.25
0.5
38.8
DL4758A
56
53.2
58.8
110
4.5
2000
0.25
0.5
42.6
DL4759A
62
58.9
65.1
125
4.0
2000
0.25
0.5
47.1
DL4760A
68
64.6
71.4
150
3.7
2000
0.25
0.5
51.7
DL4761A
75
71.25
78.75
175
3.3
2000
0.25
0.5
56
May 9,2013-REV.04
PAGE . 2
DL4728A SERIES
10
10
20
30
40
50
60
70
80
9
8
7
6
5
4
3
2
1
0
4760
4758
4753
3
May 9,2013-REV.04
PAGE . 3
DL4728A SERIES
MOUNTING PAD LAYOUT
ORDER INFORMATION
• Packing information
T/R - 5K per 13" plastic Reel
T/R - 1.5K per 7" plastic Reel
May 9,2013-REV.04
PAGE . 4
DL4728A SERIES
Part No_packing code_Version
DL4728A_R1_10001
DL4728A_R2_10001
For example :
RB500V-40_R2_00001
Serial number
Version code means HF
Packing size code means 13"
Part No.
Packing type means T/R
Packing Code XX
Packing type
Tape and Ammunition Box
(T/B)
Tape and Reel
(T/R)
Bulk Packing
(B/P)
Tube Packing
(T/P)
Tape and Reel (Right Oriented)
(TRR)
Tape and Reel (Left Oriented)
(TRL)
FORMING
May 9,2013-REV.04
Version Code XXXXX
1st Code
Packing size code
A
N/A
0
HF
0
serial number
R
7"
1
RoHS
1
serial number
B
13"
2
T
26mm
X
S
52mm
Y
L
F
PANASERT T/B CATHODE UP
(PBCU)
PANASERT T/B CATHODE DOWN
(PBCD)
2nd Code HF or RoHS 1st Code 2nd~5th Code
U
D
PAGE . 5
DL4728A SERIES
Disclaimer
• Reproducing and modifying information of the document is prohibited without permission
from Panjit International Inc..
• Panjit International Inc. reserves the rights to make changes of the content herein the
document anytime without notification. Please refer to our website for the latest
document.
• Panjit International Inc. disclaims any and all liability arising out of the application or use of
any product including damages incidentally and consequentially occurred.
• Panjit International Inc. does not assume any and all implied warranties, including warranties
of fitness for particular purpose, non-infringement and merchantability.
• Applications shown on the herein document are examples of standard use and operation.
Customers are responsible in comprehending the suitable use in particular applications.
Panjit International Inc. makes no representation or warranty that such applications will be
suitable for the specified use without further testing or modification.
•
The products shown herein are not designed and authorized for equipments requiring high
level of reliability or relating to human life and for any applications concerning life-saving
or life-sustaining, such as medical instruments, transportation equipment, aerospace
machinery et cetera. Customers using or selling these products for use in such applications
do so at their own risk and agree to fully indemnify Panjit International Inc. for any damages
resulting from such improper use or sale.
• Since Panjit uses lot number as the tracking base, please provide the lot number for tracking
when complaining.
May 9,2013-REV.04
PAGE . 6
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